From 5ed6dd1e495351cb271ea302ad90689c76790f03 Mon Sep 17 00:00:00 2001 From: Zebediah Figura Date: Sun, 19 Aug 2018 23:26:07 -0500 Subject: [PATCH 15/17] ntoskrnl.exe: Implement KeCancelTimer(). Signed-off-by: Zebediah Figura --- dlls/ntoskrnl.exe/ntoskrnl.exe.spec | 2 +- dlls/ntoskrnl.exe/sync.c | 16 ++++++++++++++++ include/ddk/wdm.h | 1 + 3 files changed, 18 insertions(+), 1 deletion(-) diff --git a/dlls/ntoskrnl.exe/ntoskrnl.exe.spec b/dlls/ntoskrnl.exe/ntoskrnl.exe.spec index f089f41..a22acf6 100644 --- a/dlls/ntoskrnl.exe/ntoskrnl.exe.spec +++ b/dlls/ntoskrnl.exe/ntoskrnl.exe.spec @@ -517,7 +517,7 @@ @ stub KeAttachProcess @ stub KeBugCheck @ stub KeBugCheckEx -@ stub KeCancelTimer +@ stdcall KeCancelTimer(ptr) @ stub KeCapturePersistentThreadState @ stdcall KeClearEvent(ptr) @ stub KeConnectInterrupt diff --git a/dlls/ntoskrnl.exe/sync.c b/dlls/ntoskrnl.exe/sync.c index 46c214c..1b7650d 100644 --- a/dlls/ntoskrnl.exe/sync.c +++ b/dlls/ntoskrnl.exe/sync.c @@ -348,3 +348,19 @@ BOOLEAN WINAPI KeSetTimerEx( KTIMER *timer, LARGE_INTEGER duetime, LONG period, return ret; } + +BOOLEAN WINAPI KeCancelTimer( KTIMER *timer ) +{ + BOOL ret; + + TRACE("timer %p.\n", timer); + + EnterCriticalSection( &sync_cs ); + ret = timer->Header.Inserted; + timer->Header.Inserted = FALSE; + CloseHandle(timer->Header.WaitListHead.Blink); + timer->Header.WaitListHead.Blink = NULL; + LeaveCriticalSection( &sync_cs ); + + return ret; +} diff --git a/include/ddk/wdm.h b/include/ddk/wdm.h index 483ee9f..6be07b2 100644 --- a/include/ddk/wdm.h +++ b/include/ddk/wdm.h @@ -1418,6 +1418,7 @@ void WINAPI IoReleaseCancelSpinLock(KIRQL); NTSTATUS WINAPI IoSetDeviceInterfaceState(UNICODE_STRING*,BOOLEAN); NTSTATUS WINAPI IoWMIRegistrationControl(PDEVICE_OBJECT,ULONG); +BOOLEAN WINAPI KeCancelTimer(KTIMER*); void WINAPI KeClearEvent(PRKEVENT); PKTHREAD WINAPI KeGetCurrentThread(void); void WINAPI KeInitializeEvent(PRKEVENT,EVENT_TYPE,BOOLEAN); -- 2.7.4